tHog

vine

Gentoo Linux

Intro

[2014-12-23] I ended up with this machine a couple of weeks ago almost by accident. The Kontron motherboard of Nanite had been unstable from the beginning, and it has a very nice CPU for its time, so I had been planning a replacement mobo for a long while. Finding a decent board for these CPUs turned out quite hard, and the one I ended up buying had SODIMM slots, prompting me to find new memory too. Fortunately for me, a friend had a few spares from a fried machine. I also had some spares in the power, cooling and disk fronts, meaning I was just a CPU short of a full machine. Incidentally, I also had a CPU-heavy project going on, and the various cryptocurrencies are also hungry for hardware (disk/RAM mostly), so it made sense to finalize the setup with a used T7200 for just a few euros.

Linux drivers

CPU temperature monitorcoretemp, ISA buslm_sensors
CPU undervoltingacpi_cpufreqInactive, see below
Ethernetsky2
Integrated graphicsi915
IDE/ATAata_piix
SATAAHCIOr emulating IDE if set in BIOS
SoundIntel HDA

BIOS issues

Undervolting problem

This motherboard exhibits the first issue described at the PHC troubleshooting thread. While the CPU is well undervoltable and I believe I can manage building and loading the module after all these years, a bad BIOS prevents this.

It is not a huge practical problem with good cooling, but certainly a matter of principle to keep in mind when buying motherboards in the future.

3 GB available RAM

A rather typical "feature" of motherboards from this era, presumably related Redmondian restrictions. If 32-bit Windows cannot access more than 3 GB of RAM, then nobody else should have the privilege either, including 64-bit Linux. On a slight positive side, memory used by the integrated video is not counted, so we get the "full" 3072 MB for the OS.

Keyboard error, press F1 to continue

Another typical misfeature of Windowsy workstation paradigm; who on Earth would use a computer without display and keyboard? Fortunately, this warning can be turned off.

S/PDIF output

The undocumented RCA connector at the back panel turns out to be a digital audio output, which is nice, so no need to play with the header.

Nomenclature

Part of a computing cluster. I heard it on the grepvine. Also, I heard you like penguins (pingvin or pingvine in many languages) so you can "ping vine" on your penguin.


Risto A. Paju